Having discovered 885 planet candidates in 361 multiple-planet systems, Kepler has made transits a powerful method for studying the statistics of planetary systems. The orbits of only two pairs of planets in these candidate systems are apparently unstable. This indicates that a high percentage of the candidate systems are truly planets orbiting the same star, motivating physical investigations of the population. Pairs of planets in this sample are typically not in orbital resonances. However, pairs with orbital period ratios within a few percent of a first-order resonance (e.g. 2:1, 3:2) prefer orbital spacings just wide of the resonance and avoid spacings just narrow of the resonance. Finally, we investigate mutual inclinations based on transit duration ratios. We infer that the inner planets of pairs tend to have a smaller impact parameter than their outer companions, suggesting these planetary systems are typically coplanar to within a few degrees.
%0 Journal Article
%1 Fabrycky2012
%A Fabrycky, Daniel C.
%A Lissauer, Jack J.
%A Ragozzine, Darin
%A Rowe, Jason F.
%A Agol, Eric
%A Barclay, Thomas
%A Batalha, Natalie
%A Borucki, William
%A Ciardi, David R
%A Ford, Eric B
%A Geary, John C
%A Holman, Matthew J
%A Jenkins, Jon M
%A Li, Jie
%A Morehead, Robert C
%A Shporer, Avi
%A Smith, Jeffrey C
%A Steffen, Jason H
%A Still, Martin
%D 2012
%K 2012 a:Lissauer kepler planets
%T Architecture of Kepler's Multi-transiting Systems: II. New investigations with twice as many candidates
%U http://arxiv.org/abs/1202.6328
%X Having discovered 885 planet candidates in 361 multiple-planet systems, Kepler has made transits a powerful method for studying the statistics of planetary systems. The orbits of only two pairs of planets in these candidate systems are apparently unstable. This indicates that a high percentage of the candidate systems are truly planets orbiting the same star, motivating physical investigations of the population. Pairs of planets in this sample are typically not in orbital resonances. However, pairs with orbital period ratios within a few percent of a first-order resonance (e.g. 2:1, 3:2) prefer orbital spacings just wide of the resonance and avoid spacings just narrow of the resonance. Finally, we investigate mutual inclinations based on transit duration ratios. We infer that the inner planets of pairs tend to have a smaller impact parameter than their outer companions, suggesting these planetary systems are typically coplanar to within a few degrees.
@article{Fabrycky2012,
abstract = {Having discovered 885 planet candidates in 361 multiple-planet systems, Kepler has made transits a powerful method for studying the statistics of planetary systems. The orbits of only two pairs of planets in these candidate systems are apparently unstable. This indicates that a high percentage of the candidate systems are truly planets orbiting the same star, motivating physical investigations of the population. Pairs of planets in this sample are typically not in orbital resonances. However, pairs with orbital period ratios within a few percent of a first-order resonance (e.g. 2:1, 3:2) prefer orbital spacings just wide of the resonance and avoid spacings just narrow of the resonance. Finally, we investigate mutual inclinations based on transit duration ratios. We infer that the inner planets of pairs tend to have a smaller impact parameter than their outer companions, suggesting these planetary systems are typically coplanar to within a few degrees.},
added-at = {2013-08-03T21:51:48.000+0200},
archiveprefix = {arXiv},
arxivid = {1202.6328},
author = {Fabrycky, Daniel C. and Lissauer, Jack J. and Ragozzine, Darin and Rowe, Jason F. and Agol, Eric and Barclay, Thomas and Batalha, Natalie and Borucki, William and Ciardi, David R and Ford, Eric B and Geary, John C and Holman, Matthew J and Jenkins, Jon M and Li, Jie and Morehead, Robert C and Shporer, Avi and Smith, Jeffrey C and Steffen, Jason H and Still, Martin},
biburl = {https://www.bibsonomy.org/bibtex/27b9eb8d0bd03e7591abdb4cffe6a79df/danielcarrera},
eprint = {1202.6328},
file = {:home/daniel/Papers/Planets-Observed/1202.AstroPh - Fabrycky - Architecture of Kepler's Multi-Transiting Systems II.pdf:pdf},
interhash = {28d02f9d4d84e5ef38c2adebb3d5884d},
intrahash = {7b9eb8d0bd03e7591abdb4cffe6a79df},
keywords = {2012 a:Lissauer kepler planets},
month = feb,
timestamp = {2014-07-18T13:39:10.000+0200},
title = {{Architecture of Kepler's Multi-transiting Systems: II. New investigations with twice as many candidates}},
url = {http://arxiv.org/abs/1202.6328},
year = 2012
}